Oil Separation & Breather System for BMW 7 Series F01 (2009+)

Clear BMW chassis

Please ensure your correct model is selected

Every car has a crankcase vent system that is supposed to suppress oil from making it into the intake ports and combustion chamber. A good functioning system will separate oil from the atmosphere and return it to the oil pan (or collect it in a catch can) while allowing the leftover vapors to burn in the combustion chamber or recirculate through the system. This has always been known as a PCV system (Positive Crankcase Ventilation) but BMW has several other names for it - oil separator, crankcase vent (CCV), and cyclonic separator. Failures in the system will allow raw oil to enter the intake and eventually into the engine itself which can have disastrous effects on engine performance and longevity. As emissions regulations on oil and gas venting have gotten more stringent the PCV systems have gotten more complex and failure prone. And because the CCV is intertwined with other systems you could experience rough running, loss of power, higher oil consumption, misfiring, stalling, or other annoying issues. There is no replacement interval for these so we recommend inspecting your crankcase vent system as part of your regular maintenance routines. Symptoms of a bad crankcase vent are: whitish or yellowish film on the underside of the oil cap, whistling/squealing noises (not caused by a belt), suction on the oil cap that makes it hard to unscrew, large amounts of white smoke from the exhaust, and excessive oil consumption.

Sub-Categories

Sort By:

Rein - Corporate Logo
T#:402034
Part#: 11157646087
In Stock
Sale - Save 5% $ 53.99

This product was last offered at the strikethrough price on
08-31-2026

$ 51.29 USD
Free Shipping on orders $49 and up
Sale - Save 5%
$ 53.99

This product was last offered at the strikethrough price on
08-31-2026

$ 51.29 USD
Free Shipping on orders $49 and up
Connects to the valve cover over cylinders 1-4. These pipes tend to crack after become brittle from numerous heating and cooling cycles. If this happens, OEM Rein pipes are a perfect replacement to restore a tight seal and prevent any check engine codes.
Show More Show Less
Rein - Corporate Logo
T#:402033
Part#: 11157646086
In Stock
Sale - Save 5% $ 50.99

This product was last offered at the strikethrough price on
08-31-2026

$ 48.44 USD
Free Shipping on orders $49 and up
Sale - Save 5%
$ 50.99

This product was last offered at the strikethrough price on
08-31-2026

$ 48.44 USD
Free Shipping on orders $49 and up
Connects to the valve cover over cylinders 1-4. These pipes tend to crack after become brittle from numerous heating and cooling cycles. If this happens, OEM Rein pipes are a perfect replacement to restore a tight seal and prevent any check engine codes.
Show More Show Less
Billet Check Valve - 10 Barb
2X Entries Into Our F80 M3 Sweepstakes
Vargas Turbo Technologies - Corporate Logo
T#:597641
Part#: VTT-CHECK-2
Ships in 9 Business Days
$ 36.99 USD
Free Shipping
$ 36.99 USD
Free Shipping
Vargas Turbo has you covered when you are installing a custom turbo setup. With all of the adapters you need and all the valves necessary, the only real limiting factor is your imagination!

BMW N63 4.4L Vent Pipe - Each
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:7244416
Part#: 11158647961
In Stock
Sale - Save 50% $ 327.99

This product was last offered at the strikethrough price on
05-04-2026

$ 163.39 USD
Free Shipping
Sale - Save 50%
$ 327.99

This product was last offered at the strikethrough price on
05-04-2026

$ 163.39 USD
Free Shipping

BMW N63 4.4L Vent Pipe

The BMW N63 4.4L Vent Pipe addresses common issues with oil separators freezing in cold weather conditions. This problem often occurs if the vehicle is driven before it is fully warmed up, leading to a howling noise and multiple oil leaks. The crankcase breather valve in the vent pipe purges oil vapor from the engine block into the valve cover. However, condensation can sometimes cause the valve to freeze, which may result in the oil separator system failing, cracking, or disintegrating. This replacement vent pipe ensures proper function and prevents costly damage by maintaining the integrity of the oil separator system.

Benefits:

  • Prevents Freezing Issues: Reduces the risk of oil separator failure in cold weather conditions.
  • Eliminates Oil Leaks: Helps prevent leaks caused by frozen oil separators.
  • Ensures Proper Ventilation: Maintains effective purging of oil vapor from the engine block.
  • Durable Construction: Built to withstand harsh weather conditions and engine stress.
  • Direct Replacement: Designed to fit seamlessly with BMW N63 4.4L engines.
Show More Show Less

Rein - Corporate Logo
T#:591595
Part#: 11157575640
In Stock
Sale - Save 5% $ 42.99

This product was last offered at the strikethrough price on
08-31-2026

$ 40.84 USD
Free Shipping on orders $49 and up
Sale - Save 5%
$ 42.99

This product was last offered at the strikethrough price on
08-31-2026

$ 40.84 USD
Free Shipping on orders $49 and up
Replace your damaged crank vent pipe
Flapper Delete Fitting - N54
2X Entries Into Our F80 M3 Sweepstakes
Vargas Turbo Technologies - Corporate Logo
T#:557962
Part#: VTT-FLAPPER-DELE
Ships in 10 Business Days
$ 57.99 USD
Free Shipping
$ 57.99 USD
Free Shipping

Vargas Turbo has you covered when you are installing a custom turbo setup. With all of the adapters you need and all the valves necessary, the only real limiting factor is your imagination!

The VTT PCV Flapper delete is used to get rid of the factory flapper, and add a -10 fitting on N54 powered vehicles. This will allow you to run a single or dual external catch can, or your own custom set up.

This fitting is made from 6061-T6 aircraft aluminum anodized black and comes with O-ring, and a stainless steel holding clip.

This part fits the following BMW engines:
2006-2012 N54

Show More Show Less

Billet 1/2" Check Valve - N54
2X Entries Into Our F80 M3 Sweepstakes
Vargas Turbo Technologies - Corporate Logo
T#:557954
Part#: VTT-CHECK-1
Ships in 1 Business Day
$ 36.99 USD
Free Shipping
$ 36.99 USD
Free Shipping

Vargas Turbo has you covered when you are installing a custom turbo setup. With all of the adapters you need and all the valves necessary, the only real limiting factor is your imagination!

This is a 1/2" (fits -8AN hos perfectly as well) CNC Billet check valve that can be used for a variety of uses including a vacuum/boost check valve when removing the stock PCV system, and still wanting to run the vacuum to the crankcase. Rated at over 100 psi, with a cracking psi of .25psi.

This part fits the following BMW engines:
2006-2012 N54

Show More Show Less
Rein - Corporate Logo
T#:591596
Part#: 11157575641
In Stock
Sale - Save 7% $ 45.99

This product was last offered at the strikethrough price on
04-30-2026

$ 42.74 USD
Free Shipping on orders $49 and up
Sale - Save 7%
$ 45.99

This product was last offered at the strikethrough price on
04-30-2026

$ 42.74 USD
Free Shipping on orders $49 and up
Replace your damaged crank vent pipe

VTT CNC ORB Plug - -10AN
2X Entries Into Our F80 M3 Sweepstakes
Vargas Turbo Technologies - Corporate Logo
T#:642075
Part#: VTT-10ORB
Ships in 10 Business Days
$ 23.99 USD
Free Shipping
$ 23.99 USD
Free Shipping

Rein Crank Case Ventilation Valve - Priced Each
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:17738377
Part#: 11158647299
In Stock
Sale - Save 12% $ 79.99

This product was last offered at the strikethrough price on
03-26-2026

$ 70.29 USD
Free Shipping on orders $49 and up
Sale - Save 12%
$ 79.99

This product was last offered at the strikethrough price on
03-26-2026

$ 70.29 USD
Free Shipping on orders $49 and up
Rein's OE quality breather hose helps prevent pressure build-up in the engine.
PCV Adapter Fitting N54
2X Entries Into Our F80 M3 Sweepstakes
Vargas Turbo Technologies - Corporate Logo
T#:557961
Part#: VTT-PCV-ADAPTER
Ships in 10 Business Days
$ 145.99 USD
Free Shipping
$ 145.99 USD
Free Shipping

Vargas Turbo has you covered when you are installing a custom turbo setup. With all of the adapters you need and all the valves necessary, the only real limiting factor is your imagination!

This is the adapter fitting that is required to convert your N54 to external PCV if you want to keep your crankcase under vacuum at idle, and anytime you have a vacuum condition in your intake manifold. They are made from 6061-T6 with black anodizing for a long-lasting finish. Includes complete adapter, with all o-rings, and retaining clip.

This must be used in conjunction with  the Vargas billet check valve, and PCV delete fitting or requires plugging of the intake PCV ports. Installs inline on the throttle body, and adds a -8AN male to adapt to a catch cans, or any custom set up.

Made from 6061-T6 with black anodizing for a long-lasting finish. Includes complete adapter, with all o-rings, and retaining clip

This part fits the following BMW engines: 
2006-2012 N54

 

Show More Show Less
Burgaflex - Corporate Logo
T#:57725182
Part#: 11157646086
Ships on Sep 24, 2026
New Item
$ 76.99 USD
Free Shipping on orders $49 and up
Keep your performance engine running cleanly and efficiently with the Burgaflex Crankcase Ventilation Connecting Pipe for Cylinders 1-4.